rate_bit 1122 include/sound/pcm.h unsigned int snd_pcm_rate_bit_to_rate(unsigned int rate_bit); rate_bit 528 sound/core/pcm_misc.c unsigned int snd_pcm_rate_bit_to_rate(unsigned int rate_bit) rate_bit 533 sound/core/pcm_misc.c if ((1u << i) == rate_bit)